Strong Bit Holding Power.

Jaws Center-Grind For Straightness And Alignment.

Through-hardened Sleeve Teeth, Plus Hardened Nose And Keyholes Provide Outstanding Wear Resistance.

Jacobs' Original Fluted Sleeve Design.

Design For Heavy Duty Industrial Applications.

T.I.R. 0.003" Maximum At Half Capacity.

In 1942, Jacobs® designed the Super Chuck, the first precision ball-bearing industrial Chuck. It's still widely used in various industrial machining applications.

Jacobs Industrial Chuck represents Reliability, Durability, High Precision, and a Solid Reputation.